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Finding the Fourth Proportional to 548,243.70, 756,592.02 and 306,526.89

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Solution

The fourth proportional to 548,243.70, 756,592.02 and 306,526.89 is: 423,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,243.70 : 756,592.02 = 306,526.89 : x
  2. Step 2: Convert to fraction form
    548,243.70/756,592.02 = 306,526.89/x
  3. Step 3: Cross multiply
    548,243.70x = 756,592.02 × 306,526.89
  4. Step 4: Simplify right side
    548,243.70x = 231,915,798,889.42
  5. Step 5: Solve for x
    x = 231,915,798,889.42/548,243.70
  6. Step 6: Final answer
    x = 423,015.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.